Three-cornered bag.



F. W. KENNEDY.

THREE CORNERED BAG.

APPLICATION FILED AUG.22. 1914.

Patented Dec. 7, 1915.

4 SHEETSSHEET I.-

COLUMBIA PLANOGRAPH c0., WASHINGTON; D. c.

F. W. KENNEDY.

THREE CORNERED BAG.

APPLICATION FILED AUG.22. i914.

Patented Dec. 7,v 1915.

4 SHEETS-SHEET 2.

coLuMmA PLAHOURIU'H 1., WASHINGTON. D.

F. W. KENNEDY.

THREE CORNERED BAG.

Patented Dec. 7, 1915.

4 SHEETSSHEET a Aiiurucgre COLUMBIA FLANOGRAPH C0,, WASHINGTON. n4

F. W. KENNEDY.

THREE CORNERED BAG.

APPLICATION FILED AUG.22, I914.

Patented Dec. 7, 1915.

4 SHEETSSHEET 4.

cuLuMnlA PLANOfin/U'll 60.. WASHINGTON, u. c.

FREDERICK W. KENLTEDY, 0E SHELBYVILLE, INDIFNA.

'rrrnan-eonnnnnn ens.

Specification of Letters Patent. 7

Applieationfiled August 22, 1914. Serial No. 858,987.

To (ZZZ whom it may concern Be it known that I, FREDERICK W. KEN- xuny, citizen theUnited States, residing at Shelbyville, in the county of Shelby and State of Indiana, have invented certain new and useful Improvements in Three-Cornered Bags; and I do hereby declare the following to be a full, clear, and exact description of the invention, sucl'iv as will enable others skilled in the art to which it appertains to make and use the same.

lhis invention relates to paper bags, and an object of the invention is to provide a bag of special constructionfor holding articles which may be conveniently grouped together in triangular form.

Another object of the invention is to provide a blank from which the bag may be formechso cut as to prevent waste of material.

With these and other objects in view the invention consists in certain features of construction and combinations of parts as will be hereinafterdescribed and claimed.

In the accompanying drawings Figure 1 shows the blank with the lines of scoring necessary to fold the bag. Fig. 2 isa perspective view of the blank, showing one side bent upwardly in the process of folding the bag, Fig. 3 is a view similar to Fig. 2 with the sides foldedto position about ready for gluing of the body proper flaps of the bag, Fig. a shows the completed bag in perspective, Fig. 5 shows a plan View of the bag folded for packing or storing, Fig. 6 shows a blank of a modified form of the invention, and Fig. 7 shows a view of the modification partly assembled. Fig. 8 is a perspective view showing the bag in open position. Fig. 9 is a blank of a still further modified form of the invention. Fig. 10 shows the form of the invention shown in Fig. 9 folded and glued to form a tube. Fig. 11 shows the modification in the proccss of folding the corners inwardly to provide the bottom. Fig. 12 is a modification of the blank shown in Fig. 9, to strengthen the corner construction.

The chief aim of the present invention is to provide a bag having a triangular bottom so formed as to house conveniently cylindrical articles such as bottles, for 1nstancc, 'and although the base of the bag shown in the drawings hasthe shape of an equilateral triangle, it is within'the scope of the present invention to make the base an lsoseeles triangle or ascalene triangle to accommodate packages of different sizes and shapes.

The blank shown in Fig. 1 may be madeof any suitable material, suchas waterproof paper, and has extending from the bottom thereof three folds, 1, 2, and 3, respectively,

Patented Dec. v, 1915.

the sides of which are equal, and meet at angles of substantially 60. In order that these flaps may be bent with respect to the restof the blank, alining lines of scoring 4-, 5 and 6 are provided, along which the L flaps 1, 2 and 3 respectively, may be bent. The blank may be of any length and preferably though not necessarily has the top thereof, seenat 7, substantially parallel with the lines of scoringa, 5 and 6. From the junction 8 of lines of scoring at and 5 there extends upwardly, and substantially perpendicularly with respect to the said lines of scoring, a longitudinal line of scoring 9, the purpose of which will be ex-.

plained hereinafter.

The blank preferably extends beyond the outer side of the flap 1 as seen at 10 to provide a fold 11 defined by the line of scoring 12, which may be glued before folding.

Extending from the apex of the flap 3, as

seen at 13, is a line of scoring 14 extending parallel to the line of scoring 9, which extends for a distance beyond the line of scoring 6 equal to the distance between the line of scoring and the apex '13, and terminates at 15. From 15 there is formed another line of scoring indicated at 16, extending parallel to the line 9 to the top 7. Lines of' scoring 17 and 18 connect the point 15 with the point 19, defining adjacent ends of lines of scoring 5 and 6 and the point20 at the outer end of the line of scoring 6, respectively. These last named lines of scoring define with the sides of the flap 3, a rhombus the acute angles of which are 60 while the obtuse angles are substantially 120, and extending across the rhombus, the line of scoring 6 divides the rhombus, into two equilateral triangles.

Extending from the point 15 to the point 8 is another line of scoring 21, which, as

shown hereinafter, coiiperates with the two lines, of scoring 22 and-23. Thelines of scoring 22 and 23 are made so that when thedistance between lines of scoring 9. and 161s made equal to one hali'jthe chstancebetween line '12 and edge 2%, and in view of the fact that the line ofscoringltiis a continuation of the bisector oi the triangle 7 forming the flap 3, it is apparent that the distance between this line andthe edg 2t is one-half: the distance ibetweenlines of Iscoring9 and 12. "The fold 12isfof' any satisfactory width'and has no definite rela-' 'tion with respect to the other portions of the blank. Fromthe proportions thus cited it will be seen that the line 22 must be inclined 7 :theend thereof in theside 2 1 will be below the point 15 a distance. equal to one-third 30 the line, of scoring 6."

downwardly from the point 16, such that of the, distance between said point15 and -l/Vhen' it is desired to form the bag from theblank already -described,the top surface of the flaps l and 2 which are seen in Fig.

,1 i are glued while the bottom surface of,

flaps 2 and 3 whichcannot be seenin Fig.

' 1 are glued, asis also the bottom offold 11.

The side is then bent upwardly along the'line of scoring 9, as is'seen at Fig. 2,

and the central flap 2 also bent upwardly from the blank. The flap 1' is also bent substantially at'right angles to the side 25 and may be moved from the position shown in Fig. 2 to the position which will overlie the upstanding flap 2 and afterward these 1 two flaps can be pressedtogether, and the told 11 bent downwardly. preparatory to bending the blank into the position shown in Fig. '3.

' fwardly from the blankand the flap3 is In Fig.3 theside 26 is shown bent upshown aspassing behind the flap 2, whereas the flap passes in front thereof, having reference toFig. 3.. The edge 2-& of side 26 lies above the glued fold 11 and after the flap 3 has been moved so as to lie'substantially in alinement withthe central flap 2, the said flap can be pressed against the cen- V .tral'flap and the fold along edge 24 secured.

This will provide a bag substantially as shown in Fig. 4, which, however, will have to be folded flat before the same can be packed in any numbers. From the position shown in Fig; 4c the triangular bottom and the portion defined between the lines of scoring 17 and 18 are bent until they are parallel with the plane 1 or the body of the bag, this fold'takingtplace along lines of, scoring21 and the line of scoring composed of theftwo' lines 22 and 23 "respectively, after which the bag will be'tormedas shown in Fig.5.

Int-he. formbf the invention already de- I scribed it lwill be possible, .of fcourse, toas- Sen'ible the bottom tor the bag without gluing the flap 2 on either side, and 1t Wlll be apparent that none of the glued surfaces arecreased.

The blank from wh ch and assh'own there comprises sides 27 and 28 respectively, .WlllCll are. separated by means of aim of scoring 29, extending the modified form "or the invention is made is shown in Fig. 6, j

longitudinally and, with the exception of the told '30, centrallyot the: blank. The

flaps, 3,1 and 32 respectively are cut in sub-:

stantiallyth'e same manner asthefflaps 1, 2'

and 3 in the preferred form ofthe'invention, lines of scoring 33 and'Set, respectively, be-

ing provided for hinged movement of the flaps 31 and The modified form is different from thepreterred form in that the sides of the blank have depending therefrom triangular portions and 36. respec- I tively which are" equal to one-half of the 'fiaps 31 and 32 while the told extends from the top 37 to the lower point of the 'fiap and is bent along the line of scoring 38. Lines of scoring 39 and 41-0 are provided to afiord hinged movement of the la-p535 and 36, respectively, with respect to the blank, while lineso'f scoring 11 and 42 extend upwardly from the points 43 "and 44: respectively at angles of 60 with respect to the linesof scoring 39 and respectively. Extending from the intersection of the ,line

41 and'the line of'scorin'g 38, as at 45, to

the bottom, is the line of scoring 17 which serves thev same function asthe line of sco'ring'21 in the preferred form. In the modified form, however, the other, l ne of scorlng which lscoextenslve with the llne of scoring 41 is. not made of two disjointed lines but ismade ot 'one and is shown as extending upwardly from the point 4L6 toward the edge 19 at an angle 01 .30.

As shown in. Fig. 7, when it is desired to assemble the modified form ofbag, thetop of the flaps 31 and 32, as seen in Fig. 6,.are glued,wh1le the bottoms of the fiaps 35 and '36, as'seen in Fig. 6, together with the bottom of the told 30 are glued, after which the flap 31 is bent upwardly and the side 27'bent upwardly along the line 29,the flap 31' having. previously beenbent "along the line of scoring 33 and extending upwardly so as to liein front of the flap 32, as seen in Fig.2. The ,fiap 36 is then bent downwardly untilthe edge lies along the line of'scoring 3-1, aftenwhich the flap 35 isfa'stened and the lower portion of fold 30 as 'under the edge 49.

seen at 51 lies over the'outer edge 52 of the flap 36, in which position all the flaps are secured together and the fold 30 fastened The principal difference between the blank found in the modified form and that of the preferred form is that the seam inthe preferred form extends longitudinally of one of the sides of the bag when thelatter is folded, whereas in the modified form. the seam is at one of the edges. This, however, does not interfere with the folding of the bag, inasmuch as thebottoin parts'of the bagof the modified form arebentalong the lines of scoring 47 and as, so that the same lies substantially in a plane with the body of the bag.

Still another modification of" the invention maybe employed as shown in Figs 9. In this form,the blank has a crease 53" and a fold 5+Lwhich may be bent along the line of scoring The lower edge of the blank has a V-shaped cut in it having the sides 56 and 57 respectively whi are inclined substantially at anangle of 60 to each other. These sides terminate in a case 58 on the line of scoring and crease 53. Extending upwardly from each side of the line of scor ing 53 and from the point 58 is a line of scoring, that shown in the portion 59 of the blank being designated at 60 while that shown in the part 61 of the blank being designated at 62. Extending horizontally from the point 58 are lines of scoring '63 and 64 which extend upon the portions 59 and 61 respectively of the blank. These last named lines of scoring do not extend to the vertical edges but terminate in lines of scoring 65 and 66 respectively which are formed at an angle of 80 respectively to the lines of scoring 60 and 62 respectively and have their upper ends terminated in the point defining the intersection of the lines 60 and 62 and the sides of the blank, These points are designated at 67 and Y68 respectively, the fold 54 extending beyond the point 68. Extending from the point 69 defined by the intersection of lines of scoring 63 and 65 is a line of scoring 70 whichextends from said point to the lower right hand corner of the blank as at 71. A similar line of scoring 72 extends from point 7 3 formed by the intersection of lines of scoring 54k and 56 re spectively. I V

l/Vhen it is desired to fold the bag of this last named modification, the two parts 59 and 61 are folded along the line of scoring 53 after which the fold 54: is turned over and secured to the adjacent edge of the part 59. After this, the portions of the lower part of the blank defined between the lines of scoring 55 and 56 and their respective vertical edges of the blank, are bent along said lines of scoring 65 and 66, and in 'beiidingover to become substantiallypar- 3.1161 with the blank, the part of the blank between lines of scoring 60 and 65 willbcnd along the line of scoring 60 to lie flat against part 59 'oftheblank. After this, it will be.

seenthat line of scoring 70 is superposed -upon line of scoring 63' whereas line ,of scoring 72 1s superposedlupon line of scoring. .64 7

so that equilateral triangles-74L and 7 5 are superposed upon their. adjacent equilateral triangles 7 6 and :77 respectively.- 1 The .tri

angle 7.1-, together withtriangle 76, may thus be bent along the lines of' scoring 70 and 63 respectively until the same lie flat as shown in Fig. 10. Thetriangles "and;77 may then be bent along their lines of scoring posed upon triangles 74L and 76.

' Any method may be employed for securing the superposed triangles to each other 72 and 64 respectively until they are superand to thelower layer of paper immediately under triangle 74:- The bag may then be made to. assume the form shown in Fig. 8

and later folded as, shown in Fig. l-, the bag having the same general appearance as that shown in Fig. 6.

Of course, it will be possible for the bottom of the bag to be folded along lines of scoring 62 instead of line of scoring 60 and it is also noted'that it is immaterial which side of equilateral triangles is superposed upon the other.

, It is noted that the bottom is not folded corner of the bag at point 58.

What is claimed is:

1. A three cornered bag formed of a blank having a main rectangular portion, a plurality of flaps projecting from one edge of the blank and being of triangular formation, the base of one of the, triangles terminating at one edge of the blank and the base of another of the triangles terminating at a point slightly distant from the opposite edge of the blank, the third triangle being located between the first two, and the blank having a line of scoring extending from each end of the base of the second triangle and longitudinally of the blank, a line of scoring extending from the apex of thefirst of said triangles and longitudinally of the blank, a line of scoring running from each end of the base of the first-triangle to a given point on the line of the longitudinal scoring last menpointto one end of the adjacent longitudinal scoring, and an additional scoring extendtioned, a line of scoring extending from said rality: ofjfiapg projecting from -one-e'dge of the blank and :being of, triangular yfQl'll'lit tion,'fthe base'of onevof theztriangles termi- V fna'ting atone edge oiitheblankj and the base 0f another of the trianglestei'mi-nating at a "point. slightlyY-distant a from. the opposite edge of the blank, Zthe thirdxtriangle' being:

I located hetweenitheffirst two, and the blank w l having" line 02f s cor=ing feXtending from '2 eaehend' ofithe'bas'e of v the second triangle 7 iand-longitudinally of the "blank, a line of scoring' extending from the apex of the first of said triangles and longitudinally of-the blanlg the distance hetweentwo oftheafore- #Gopies of this: petent in'ay be ohtai ned for said longitudinal scoring lines being e'qual -,t0 one-halfof the distance between the: third longitudinal scoring line and one edge of the blanlga line of scoringrunningfromeach end ofthebase of the ,first tria-ngle to a t given point on theline of the longitudinal scoring last mentioned, a line of scoring ex;

tending from said point to one end ofthe adj acenti longitudinal scoring and etil'Qaddiin. presence of two itnesses. V.

F EDERICK WriKENNE-Di masses: V v V CARL THOMS ttional scoring extending; at the same angle v and from the scoring last Inentioned toth'e remaining longitudinal sooring'. v

In testimony whereof I'affiX'm-y signature en 1 e ing the denlmis sio ner of Patents.. Y Washington,1), 0.2 h I 

